bro,first before the instalation u need to culculate the compression ratio......and one thing if u did not change the piston........max boost u can go is 0.5 bar......i have already done this to a satria 1.3......but the engine does not last long.....banyak meragam......because,when u turbochrage the engine u did not change the map sensor.....this will confuse the ecu......so what u must do is u must change the map sensor and change the ECU.........